[Mplayer-cvslog] CVS: main/drivers mga_vid.c,1.30,1.31

[Alex Beregszaszi]

On Sat, Feb 02, 2002 at 09:50:02PM +0100, Dariush Pietrzak wrote:
> Update of /cvsroot/mplayer/main/drivers
> In directory mplayer:/var/tmp.root/cvs-serv5323
> 
> Modified Files:
> 	mga_vid.c 
> Log Message:
> framework for settings modifications like in radeon_vid ( /dev/mga_vid can
> be written to ).
> Brightness and chroma control.

Hi!

Is this gamma control working?
If yes, could you fix the one in vidix/drivers/mga_vid.c ?

Thx,
alex

> 
> 
> Index: mga_vid.c
> ===================================================================
> RCS file: /cvsroot/mplayer/main/drivers/mga_vid.c,v
> retrieving revision 1.30
> retrieving revision 1.31
> diff -u -r1.30 -r1.31
> --- mga_vid.c	2 Jan 2002 23:38:16 -0000	1.30
> +++ mga_vid.c	2 Feb 2002 20:49:52 -0000	1.31
> @@ -88,6 +88,12 @@
>  MODULE_LICENSE("GPL");
>  #endif
>  
> +// WARNING - eyck changes
> +#define PARAM_BRIGHTNESS "brightness="
> +#define PARAM_SATURATION "saturation="
> +#define PARAM_BLACKIE "blackie="
> +// end eyck
> +
>  typedef struct bes_registers_s
>  {
>  	//BES Control
> @@ -152,6 +158,11 @@
>  	//BES Field 2 weight start
>  	uint32_t besv2wght;
>  
> +
> +	//configurable stuff
> +	int brightness;
> +	int blackie;
> +
>  } bes_registers_t;
>  
>  static bes_registers_t regs;
> @@ -680,11 +691,16 @@
>  	return -1;
>  }
>  
> +	// setting black&white mode 
> +	regs.besctl|=(regs.blackie<<20); // TODO: check g200 & g400 (maybe tomorrow)
>  
> -	//Disable contrast and brightness control
> +	//Enable contrast and brightness control
>  	regs.besglobctl |= (1<<5) + (1<<7);
> -	regs.beslumactl = (0x7f << 16) + (0x80<<0);
> -	regs.beslumactl = 0x80<<0;
> +	
> +	// brightness ; default is 0x7f;
> +	regs.beslumactl = (regs.brightness << 16);
> +	// contrast:
> +	regs.beslumactl|= (0x80<<0);
>  
>  	//Setup destination window boundaries
>  	besleft = x > 0 ? x : 0;
> @@ -1304,7 +1320,25 @@
>  
>  static ssize_t mga_vid_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
>  {
> -	return -EINVAL;
> +	// WARNING: eyck changes
> +	if(memcmp(buf,PARAM_BRIGHTNESS,min(count,strlen(PARAM_BRIGHTNESS))) == 0)
> +	{
> +		short brightness;
> +		brightness=simple_strtol(&buf[strlen(PARAM_BRIGHTNESS)],NULL,10);
> +		if (brightness>127 || brightness<-128) { brightness=0;} 
> +//		printk(KERN_DEBUG "mga_vid: brightness modified ( %d ) \n",brightness);
> +		regs.brightness=brightness;
> +	} else 
> +        if(memcmp(buf,PARAM_BLACKIE,min(count,strlen(PARAM_BLACKIE))) == 0)
> +	{
> +		short blackie;
> +		blackie=simple_strtol(&buf[strlen(PARAM_BLACKIE)],NULL,10);
> +//		printk(KERN_DEBUG "mga_vid: shadow mode: ( %d ) \n",blackie);
> +		regs.blackie=(blackie>0)?1:0;
> +	} else count = -EIO;
> +	// TODO: reset settings
> +	return count;
> +//	return -EINVAL;
>  }
>  
>  static int mga_vid_mmap(struct file *file, struct vm_area_struct *vma)
> 
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